<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>提取文件</title>
    <link href="https://cdn.bootcss.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet">
    <style>
        .form-signin {
            max-width: 400px;
            margin: 100px auto 0;
        }
        .form-signin-heading {
            margin-bottom: 20px;
        }
        .btn {
            margin-top: 20px;
        }
    </style>
</head>
<body>
    
    <div class="container">
    
        <form class="form-signin" action="/download" method="get">
            <h2 class="form-signin-heading">提取文件</h2>

            <div class="form-group">
                <label for="name">用户名</label>
                <input type="text" class="form-control" name="username" placeholder="请输入用户名">
            </div>
            
            <div class="form-group">
                <label for="passwd">密码</label>
                <input type="password" class="form-control" name="passwd" placeholder="请输入密码">
            </div>

            <button class="btn btn-lg btn-primary btn-block" type="submit">提取</button>
        </form>
    
    </div>

</body>
</html>